A076786 - cp's OEIS frontend

A076786 Squarefree numbers such that in decimal representation all their prefixes are also squarefree.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	10
8	11
9	13
10	14
11	15
12	17
13	19
14	21
15	22
16	23
17	26
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	51
28	53
29	55
30	57
31	58
32	59
33	61
34	62
35	65
36	66
37	67
38	69
39	70
40	71
41	73
42	74
43	77
44	78
45	79
46	101
47	102
48	103
49	105
50	106
51	107
52	109
53	110
54	111
55	113
56	114
57	115
58	118
59	119
60	130
61	131
62	133
63	134
64	137

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39, 51, 53, 55, 57, 58, 59, 61, 62, 65, 66, 67, 69, 70, 71, 73, 74, 77, 78, 79, 101, 102, 103, 105, 106, 107, 109, 110, 111, 113, 114, 115, 118, 119, 130, 131, 133, 134, 137]

cp's OEIS Frontend

A076786 Squarefree numbers such that in decimal representation all their prefixes are also squarefree.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	10
8	11
9	13
10	14
11	15
12	17
13	19
14	21
15	22
16	23
17	26
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	51
28	53
29	55
30	57
31	58
32	59
33	61
34	62
35	65
36	66
37	67
38	69
39	70
40	71
41	73
42	74
43	77
44	78
45	79
46	101
47	102
48	103
49	105
50	106
51	107
52	109
53	110
54	111
55	113
56	114
57	115
58	118
59	119
60	130
61	131
62	133
63	134
64	137

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	10
8	11
9	13
10	14
11	15
12	17
13	19
14	21
15	22
16	23
17	26
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	51
28	53
29	55
30	57
31	58
32	59
33	61
34	62
35	65
36	66
37	67
38	69
39	70
40	71
41	73
42	74
43	77
44	78
45	79
46	101
47	102
48	103
49	105
50	106
51	107
52	109
53	110
54	111
55	113
56	114
57	115
58	118
59	119
60	130
61	131
62	133
63	134
64	137

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	10
8	11
9	13
10	14
11	15
12	17
13	19
14	21
15	22
16	23
17	26
18	29
19	30
20	31
21	33
22	34
23	35
24	37
25	38
26	39
27	51
28	53
29	55
30	57
31	58
32	59
33	61
34	62
35	65
36	66
37	67
38	69
39	70
40	71
41	73
42	74
43	77
44	78
45	79
46	101
47	102
48	103
49	105
50	106
51	107
52	109
53	110
54	111
55	113
56	114
57	115
58	118
59	119
60	130
61	131
62	133
63	134
64	137